SciShow
Do Animals Cry?
Plenty of animals have tears that moisturize their eyes. But does that mean they're sad? Quick Questions explains!
Crash Course
Psychology of Computing: Crash Course Computer Science
We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re...
TED Talks
TED: How we can build AI to help humans, not hurt us | Margaret Mitchell
As a research scientist at Google, Margaret Mitchell helps develop computers that can communicate about what they see and understand. She tells a cautionary tale about the gaps, blind spots and biases we subconsciously encode into AI --...
Crash Course
African Pantheons and the Orishas: Crash Course World Mythology
So, today we're talking about African Pantheons. Now, you might say, that's ridiculous. Africa isn't a single place with a single pantheon, and we'd be fools to try and cover all that in an eleven minute video. You'd be right. Instead...
SciShow
SciShow Quiz Show: Weird Facts About Humans
Hank squares off against the host of SciShow Kids, Jessi Knudsen Castaneda, to match wits about chemistry, evolution, and how babies are weird!
SciShow
Blue Is Pretty Special: How Nature Gets the Blues
It's really difficult for life to create blue pigments, but the color can appear in a handful of compounds that create just the right conditions to reflect blue photons.
SciShow
Why Are There Righties & Lefties
About 10% of the world population is left-handed. But why does handedness exist and what determines which hand is dominant? Scientists have suggested several theories, but the answer may well lie with evolution.
TED Talks
Svante Pääbo: DNA clues to our inner neanderthal
Sharing the results of a massive, worldwide study, geneticist Svante Pääbo shows the DNA proof that early humans mated with Neanderthals after we moved out of Africa. (Yes, many of us have Neanderthal DNA.) He also shows how a tiny bone...
MinuteEarth
Rise Of The Mesopredator🎵 (ft. ScienceWithTom)
Thanks to humans, old school apex predators are struggling to hold onto their perch at the top of the food chain. And now a new class of adaptable mesopredators are remaking the ecosystems they take over....
SciShow
Weird Ways We've Fought Invasive Species
Invasive species can wreak havoc in their new habitats, and the survival of entire ecosystems can depend on getting rid of them. In some cases, we humans have gotten pretty creative in our attempts to eradicate the problem.
SciShow
Is Your Dog As Smart As A Two Year Old?
You’ve heard that dogs are basically furry toddlers, with cognitive abilities on par with a 2 year old human. But while that might make sense on some levels, the minds of distinct species can work very differently.
Be Smart
The Only Animal That Weeps
Why do we cry? It's weird. Humans leak water out of their faces when they get sad. Are we the only animals that do this? What does it mean? What is it for? Here's the science of human tears!
SciShow
Seeing Like Mantis Shrimp to Spot Cancer
Mantis shrimp might as well be super heroes, and one of their powers might given us insight on how to spot cancer.
PBS
How Horses Took Over North America (Twice)
The ancestors of modern horses became so successful that they spread all over the world, to Europe, Asia, South America, and Africa. But in their native range of North America, they'll vanish for 10,000 years. Until another strange...
SciShow
No, Your Dog Doesn't Think You're the "Alpha"
The toughest, most dominant canine gets the resources and respect - or at least that's the idea that caught on culturally. Turns out, that's not necessarily how it works.
SciShow
5 Underwater Farmers
Humans have been farming in the ocean for years, but we're not the only saltwater farmers out in the deep blue sea.
SciShow
6 Parasites That Live INSIDE Cells
When you think "parasite," you might think of leeches or some nasty tape worm, but there are some that can live inside your very own cells. Chapters Plasmodium 0:56 Rickettsia 2:49 ROCKY MOUNTAIN SPOTTED FEVER 2:59 Legionella 4:09...
SciShow
Why Is That Baby Staring at Me?
That baby is staring at you, and you don't know why. Something in your teeth? Did you accidentally leave a tag on your clothes? Don't worry,that baby probably just likes your face.
SciShow
4 Mysterious Extinctions from Earth’s History
Nowadays, we're pretty confident about how the dinosaurs died out, but there are still other extinctions throughout Earth's history, some big, some small, that remain unsolved.
SciShow
5 Things Humans Got Really Wrong About Our Bodies
Throughout history, people have been trying to figure out how our bodies work and how to fix them when things go wrong. This has led to some ideas that, with the benefit of hindsight, seem very strange
SciShow
The Curious History of the Lab Rat
If you give them any thought at all, you probably associate them with sewers, cargo ships and maybe animated movies about animals that want to become French chefs. But for almost 200 years, tens of millions of rats have played a central...
Crash Course
2001 - A Space Odyssey: Crash Course Film Criticism
Well, here we are. It's the final episode of Crash Course Film Criticism and we're going to chat about one of the more polarizing films ever made: Stanley Kubrick's 2001: A Space Odyssey. On the surface, 2001 tells the story of human...
SciShow
Your Brain on Psilocybin
Humans have been taking psilocybin-containing mushrooms for centuries, but there has been recent research into the therapeutic possibilities of this molecule.
Be Smart
97% of Climate Scientists Really Do Agree
Do 97% of climate scientists really agree that humans are the main cause of climate change? Yep! Here's what the 97 percent statistic *really* means.